:root {
  --color-bg: rgb(247, 244, 239);
  --color-surface: rgb(255, 255, 255);
  --color-surface-alt: rgb(241, 236, 228);
  --color-text: rgb(43, 32, 24);
  --color-muted: rgb(114, 99, 84);
  --color-primary: rgb(122, 74, 38);
  --color-primary-hover: rgb(96, 56, 27);
  --color-primary-soft: rgb(237, 226, 213);
  --color-accent: rgb(189, 145, 76);
  --color-on-accent: rgb(255, 255, 255);
  --color-border: rgb(223, 213, 199);
  --color-success: rgb(44, 122, 82);
  --color-danger: rgb(176, 60, 60);
  --color-warning: rgb(196, 142, 42);
  --color-overlay: rgba(35, 25, 17, 0.58);
  --color-shadow: rgba(56, 40, 26, 0.12);
  --color-shadow-strong: rgba(56, 40, 26, 0.22);
  --color-header-bg: rgba(255, 255, 255, 0.94);
  --color-footer-bg: rgb(42, 32, 24);
  --color-footer-text: rgb(228, 219, 207);
  --color-white: rgb(255, 255, 255);
  --color-ink: rgb(0, 0, 0);
  --color-track: rgba(122, 74, 38, 0.18);
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --max-width: 1200px;
  --header-height: 76px;
}

[data-theme="dark"] {
  --color-bg: rgb(24, 20, 17);
  --color-surface: rgb(36, 30, 25);
  --color-surface-alt: rgb(45, 38, 32);
  --color-text: rgb(240, 233, 223);
  --color-muted: rgb(175, 161, 144);
  --color-primary: rgb(206, 150, 100);
  --color-primary-hover: rgb(224, 175, 130);
  --color-primary-soft: rgb(64, 50, 38);
  --color-accent: rgb(214, 176, 112);
  --color-on-accent: rgb(35, 28, 22);
  --color-border: rgb(72, 61, 51);
  --color-success: rgb(94, 178, 132);
  --color-danger: rgb(224, 112, 112);
  --color-shadow: rgba(0, 0, 0, 0.4);
  --color-shadow-strong: rgba(0, 0, 0, 0.55);
  --color-header-bg: rgba(36, 30, 25, 0.94);
  --color-footer-bg: rgb(18, 15, 12);
  --color-footer-text: rgb(214, 204, 190);
  --color-track: rgba(206, 150, 100, 0.25);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

img,
video {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-primary-hover);
}

button {
  font-family: inherit;
  cursor: pointer;
}

input,
select,
textarea {
  font-family: inherit;
  font-size: 1rem;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.section {
  padding: 76px 0;
}

.section-alt {
  background-color: var(--color-surface-alt);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 44px;
}

.section-head h2 {
  font-size: 2rem;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-head p {
  color: var(--color-muted);
  font-size: 1.05rem;
}

.eyebrow {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.82rem;
  margin-bottom: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.2s ease;
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  color: var(--color-white);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-light {
  background-color: var(--color-white);
  color: var(--color-primary);
}

.btn-light:hover {
  background-color: var(--color-surface-alt);
  color: var(--color-primary-hover);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 8px 14px;
  font-size: 0.88rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
}

.brand-name {
  font-weight: 800;
  font-size: 1.08rem;
  color: var(--color-text);
  white-space: nowrap;
}

.main-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-list > li {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 10px 12px;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 220px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 14px 34px var(--color-shadow-strong);
  list-style: none;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.18s ease;
}

.has-dropdown:hover .dropdown,
.has-dropdown.open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: block;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.92rem;
}

.dropdown a:hover {
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
}

.nav-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.lang-select {
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
}

.theme-toggle,
.burger {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-size: 1.05rem;
}

.theme-toggle:hover,
.burger:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.theme-toggle .icon-sun {
  display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
  display: inline;
}

[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}

.burger {
  display: none;
}

.mobile-menu {
  display: none;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
  padding: 10px 20px 18px;
}

.mobile-menu.open {
  display: block;
  max-height: calc(100vh - var(--header-height));
  max-height: calc(100dvh - var(--header-height));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.mobile-menu ul {
  list-style: none;
}

.mobile-menu .nav-link {
  border-bottom: none;
  padding: 12px 4px;
}

.mobile-sub {
  padding-left: 16px;
}

.mobile-sub a {
  display: block;
  padding: 9px 4px;
  color: var(--color-muted);
  font-size: 0.92rem;
}

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  color: var(--color-white);
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media video,
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--color-overlay), rgba(35, 25, 17, 0.25));
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 90px 20px;
}

.hero-content {
  max-width: 660px;
}

.hero-badge {
  display: inline-block;
  background-color: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  margin-bottom: 22px;
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.18;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.page-hero {
  background-color: var(--color-primary-soft);
  padding: 64px 0 54px;
  text-align: center;
}

.page-hero h1 {
  font-size: 2.4rem;
  margin-bottom: 12px;
}

.page-hero p {
  color: var(--color-muted);
  max-width: 720px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  list-style: none;
  font-size: 0.88rem;
  color: var(--color-muted);
  margin-top: 16px;
}

.breadcrumb a {
  color: var(--color-muted);
}

.breadcrumb a:hover {
  color: var(--color-primary);
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 8px 24px var(--color-shadow);
}

.card-body {
  padding: 22px;
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.card p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.value-card {
  text-align: center;
  padding: 30px 22px;
}

.value-icon {
  width: 58px;
  height: 58px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background-color: var(--color-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--color-primary);
  font-weight: 800;
}

.category-card {
  position: relative;
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  color: var(--color-white);
}

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.category-card:hover img {
  transform: scale(1.08);
}

.category-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(35, 25, 17, 0.05), var(--color-overlay));
}

.category-caption {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 18px;
  z-index: 2;
}

.category-caption h3 {
  font-size: 1.18rem;
}

.category-caption span {
  font-size: 0.86rem;
  opacity: 0.85;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.stat-num {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-primary);
}

.stat-label {
  color: var(--color-muted);
  font-size: 0.92rem;
}

.process-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.process-step {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 18px;
}

.process-step .step-no {
  display: inline-flex;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 12px;
}

.process-step h3 {
  font-size: 1.02rem;
  margin-bottom: 6px;
}

.process-step p {
  font-size: 0.9rem;
  color: var(--color-muted);
}

.cta-band {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: center;
  padding: 70px 20px;
}

.cta-band h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.cta-band p {
  opacity: 0.9;
  margin-bottom: 28px;
}

.cta-band .btn-primary {
  background-color: var(--color-white);
  color: var(--color-primary);
}

.cta-band .btn-primary:hover {
  background-color: var(--color-surface-alt);
}

.media-text {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 44px;
  align-items: center;
}

.media-text img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 14px 34px var(--color-shadow);
}

.media-text h2 {
  font-size: 1.9rem;
  margin-bottom: 16px;
}

.media-text p {
  color: var(--color-muted);
  margin-bottom: 14px;
}

.media-text ul {
  list-style: none;
  margin-top: 12px;
}

.media-text li {
  padding-left: 26px;
  position: relative;
  margin-bottom: 10px;
  color: var(--color-text);
}

.media-text li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 800;
}

.timeline {
  position: relative;
  padding-left: 30px;
  border-left: 2px solid var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 30px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -38px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 3px solid var(--color-bg);
}

.timeline-year {
  font-weight: 800;
  color: var(--color-primary);
  font-size: 1.1rem;
}

.equip-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.equip-card dl {
  margin-top: 10px;
  font-size: 0.88rem;
}

.equip-card dt {
  font-weight: 700;
  color: var(--color-text);
  margin-top: 8px;
}

.equip-card dd {
  color: var(--color-muted);
}

.qc-grid .qc-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.qc-dot {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}

.carousel {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 14px;
}

.carousel > * {
  scroll-snap-align: start;
  flex: 0 0 300px;
}

.client-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  text-align: center;
}

.client-card strong {
  display: block;
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.client-card span {
  color: var(--color-muted);
  font-size: 0.88rem;
}

.cert-card {
  background: none;
  border: none;
  padding: 0;
}

.cert-card img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: transform 0.25s ease;
}

.cert-card:hover img {
  transform: scale(1.04);
}

.cert-card figcaption {
  margin-top: 8px;
  font-weight: 600;
  text-align: center;
  font-size: 0.92rem;
}

.carousel-controls {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 14px;
}

.carousel-controls button {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-size: 1.1rem;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  background-color: var(--color-overlay);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 30px;
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-height: 88vh;
  max-width: 92vw;
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
}

.lightbox-close {
  position: absolute;
  top: 22px;
  right: 8%;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: none;
  background-color: rgba(255, 255, 255, 0.9);
  font-size: 1.3rem;
}

.filter-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 30px;
  align-items: start;
}

.filter-panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  position: sticky;
  top: calc(var(--header-height) + 16px);
}

.filter-group {
  margin-bottom: 22px;
}

.filter-group h3 {
  font-size: 0.95rem;
  margin-bottom: 10px;
}

.filter-group input[type="text"],
.filter-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  color: var(--color-text);
}

.check-list {
  list-style: none;
  max-height: 190px;
  overflow-y: auto;
}

.check-list li {
  padding: 5px 0;
  font-size: 0.92rem;
}

.check-list input {
  margin-right: 8px;
}

.search-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.search-bar input {
  flex: 1;
  padding: 13px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
}

.result-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  color: var(--color-muted);
  font-size: 0.92rem;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-toggle-mobile {
  display: none;
}

.product-card {
  display: block;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: var(--color-text);
  box-shadow: 0 8px 22px var(--color-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 34px var(--color-shadow-strong);
  color: var(--color-text);
}

.product-media {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background-color: var(--color-surface-alt);
}

.product-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease, opacity 0.35s ease;
}

.product-media img.alt-img {
  opacity: 0;
}

.product-card:hover .product-media img.main-img {
  transform: scale(1.25);
}

.product-card:hover .product-media img.alt-img {
  opacity: 1;
  transform: scale(1.25);
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 3;
  background-color: rgba(35, 25, 17, 0.72);
  color: var(--color-white);
  font-size: 0.76rem;
  padding: 4px 10px;
  border-radius: 999px;
}

.product-info {
  padding: 16px 18px 20px;
}

.product-info h3 {
  font-size: 1.02rem;
  margin-bottom: 6px;
  min-height: 2.3em;
}

.product-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.chip {
  font-size: 0.76rem;
  padding: 3px 9px;
  border-radius: 999px;
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
}

.product-sub {
  font-size: 0.88rem;
  color: var(--color-muted);
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 70px 20px;
  color: var(--color-muted);
}

.empty-state .big {
  font-size: 2.4rem;
  display: block;
  margin-bottom: 12px;
}

.detail-layout {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 44px;
  align-items: start;
}

.gallery-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.gallery-main img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.gallery-thumbs {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.gallery-thumbs button {
  width: 78px;
  height: 78px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  padding: 0;
  background: none;
}

.gallery-thumbs button.active {
  border-color: var(--color-primary);
}

.gallery-thumbs img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
}

.spec-table th,
.spec-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.94rem;
}

.spec-table th {
  width: 38%;
  color: var(--color-muted);
  font-weight: 600;
  background-color: var(--color-surface-alt);
}

.rich-content {
  line-height: 1.85;
}

.rich-content p {
  margin-bottom: 12px;
}

.rich-content ul {
  padding-left: 22px;
  margin-bottom: 12px;
}

.step-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  counter-reset: step;
}

.step-card {
  display: flex;
  gap: 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.step-card .step-no {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
}

.step-card h3 {
  font-size: 1.06rem;
  margin-bottom: 6px;
}

.step-card p {
  color: var(--color-muted);
  font-size: 0.92rem;
}

.faq-list details {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  margin-bottom: 12px;
}

.faq-list summary {
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 30px;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 0;
  font-size: 1.3rem;
  color: var(--color-primary);
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  margin-top: 12px;
  color: var(--color-muted);
}

.option-grid .option-item {
  text-align: center;
  padding: 26px 18px;
}

.option-item .opt-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
}

.catalog-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 30px;
  align-items: start;
}

.catalog-nav {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px;
  position: sticky;
  top: calc(var(--header-height) + 16px);
}

.catalog-group {
  margin-bottom: 14px;
}

.catalog-group h3 {
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  padding: 6px 10px;
}

.catalog-nav button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 9px 12px;
  border: none;
  background: none;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.94rem;
}

.catalog-nav button:hover {
  background-color: var(--color-primary-soft);
}

.catalog-nav button.active {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.catalog-detail {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.catalog-detail img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.catalog-detail .detail-body {
  padding: 30px;
}

.prop-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 18px;
}

.prop-item {
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding: 14px 16px;
}

.prop-item dt {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.prop-item dd {
  font-size: 0.93rem;
}

.cert-strip {
  margin-top: 26px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.cert-badge {
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
  border-radius: 999px;
  padding: 8px 18px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-primary);
}

.case-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 34px;
}

.case-card img {
  width: 100%;
  height: 100%;
  min-height: 300px;
  object-fit: cover;
}

.case-card:nth-child(even) .case-media {
  order: 2;
}

.case-body {
  padding: 34px;
}

.case-body h3 {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.case-client {
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.case-row {
  margin-bottom: 12px;
}

.case-row strong {
  display: block;
  color: var(--color-primary);
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.case-row span {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.blog-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.blog-date {
  color: var(--color-accent);
  font-size: 0.84rem;
  font-weight: 700;
}

.comments-section {
  border-top: 2px solid var(--color-border);
  padding-top: 30px;
}

.comments-title {
  font-size: 1.4rem;
  margin-bottom: 24px;
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.comment-item {
  display: flex;
  gap: 16px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
}

.comment-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 700;
  flex-shrink: 0;
}

.comment-body {
  flex: 1;
}

.comment-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.comment-role {
  color: var(--color-accent);
  font-size: 0.82rem;
  background-color: var(--color-surface-alt);
  padding: 2px 10px;
  border-radius: 12px;
}

.comment-date {
  color: var(--color-muted);
  font-size: 0.82rem;
}

.comment-text {
  line-height: 1.7;
  color: var(--color-text);
  white-space: pre-wrap;
  word-break: break-word;
}

.form-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: 0 10px 30px var(--color-shadow);
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 7px;
  font-size: 0.93rem;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
  color: var(--color-text);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-track);
}

.field textarea {
  resize: vertical;
  min-height: 120px;
}

.field .hint {
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-top: 5px;
}

.field-error {
  color: var(--color-danger);
  font-size: 0.84rem;
  margin-top: 5px;
  display: none;
}

.field.invalid .field-error {
  display: block;
}

.form-message {
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  margin-bottom: 16px;
  font-size: 0.92rem;
  display: none;
}

.form-message.success {
  display: block;
  background-color: rgba(44, 122, 82, 0.12);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-message.error {
  display: block;
  background-color: rgba(176, 60, 60, 0.1);
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

.hp-field {
  position: absolute;
  left: -9999px;
}

.contact-info li {
  list-style: none;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.contact-info .ci-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--color-primary-soft);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.contact-info strong {
  display: block;
}

.contact-info span,
.contact-info a {
  color: var(--color-muted);
  font-size: 0.94rem;
  word-break: break-word;
}

.map-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-top: 26px;
}

.map-frame iframe {
  width: 100%;
  height: 380px;
  border: 0;
  display: block;
}

.video-facade {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 16 / 9;
}

.video-facade img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-facade .play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 78px;
  height: 78px;
  border-radius: 50%;
  border: none;
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-primary);
  font-size: 1.8rem;
}

.video-facade iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.film-hero {
  min-height: 70vh;
  color: var(--color-ink);
}

.film-hero p {
  color: rgba(0, 0, 0, 0.82);
}

.film-hero .hero-badge {
  background-color: rgba(0, 0, 0, 0.08);
  border-color: rgba(0, 0, 0, 0.32);
}

.film-hero .hero-media::after {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.78), rgba(255, 255, 255, 0.18));
}

.film-bg {
  border-radius: 0;
  aspect-ratio: auto;
  cursor: default;
}

.film-bg .play-btn {
  cursor: pointer;
  width: 92px;
  height: 92px;
  z-index: 3;
  transition: transform 0.25s ease;
}

.film-bg .play-btn:hover {
  transform: translate(-50%, -50%) scale(1.08);
}

.breadcrumb.on-film {
  justify-content: flex-start;
  margin-top: 26px;
}

.breadcrumb.on-film,
.breadcrumb.on-film a {
  color: var(--color-ink);
}

.breadcrumb.on-film a:hover {
  color: var(--color-accent);
}

.film-hero.is-playing .hero-media::after {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.film-hero.is-playing .hero-inner {
  display: none;
}

.floating-contact {
  position: fixed;
  right: 20px;
  bottom: 84px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.floating-contact a {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 0.72rem;
  font-weight: 700;
  box-shadow: 0 6px 18px var(--color-shadow-strong);
}

.floating-wa {
  background-color: rgb(37, 168, 96);
}

.floating-mail {
  background-color: var(--color-primary);
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 24px;
  z-index: 95;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: none;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 1.15rem;
  box-shadow: 0 8px 22px var(--color-shadow-strong);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--color-primary-hover);
}

.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 60px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 36px;
}

.site-footer h4 {
  color: var(--color-white);
  margin-bottom: 16px;
  font-size: 1rem;
}

.site-footer p,
.site-footer a,
.site-footer li {
  color: var(--color-footer-text);
  font-size: 0.92rem;
}

.site-footer ul {
  list-style: none;
}

.site-footer li {
  margin-bottom: 9px;
}

.site-footer a:hover {
  color: var(--color-accent);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-brand img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  margin-top: 40px;
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  opacity: 0.85;
}

.pagination {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 30px;
}

.pagination button {
  min-width: 38px;
  height: 38px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  padding: 0 10px;
}

.pagination button.active {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.pagination button:disabled {
  opacity: 0.4;
  cursor: default;
}

.text-center {
  text-align: center;
}

.mt-20 {
  margin-top: 20px;
}

.mt-40 {
  margin-top: 40px;
}

@media (max-width: 980px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-row,
  .process-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .media-text,
  .detail-layout,
  .filter-layout,
  .catalog-layout {
    grid-template-columns: 1fr;
  }

  .case-card,
  .case-card:nth-child(even) .case-media {
    grid-template-columns: 1fr;
    order: 0;
  }

  .case-card img {
    min-height: 220px;
  }

  .filter-panel,
  .catalog-nav {
    position: static;
  }
}

@media (max-width: 760px) {
  .main-nav,
  .nav-tools .lang-select {
    display: none;
  }

  .burger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .mobile-menu .nav-tools .lang-select {
    display: block;
    width: 100%;
  }

  .section {
    padding: 54px 0;
  }

  .hero {
    min-height: 78vh;
  }

  .hero h1 {
    font-size: 2.05rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .page-hero {
    padding: 44px 0 38px;
  }

  .page-hero h1 {
    font-size: 1.7rem;
  }

  .section-head h2,
  .media-text h2,
  .cta-band h2 {
    font-size: 1.55rem;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .step-cards,
  .prop-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .stats-row,
  .process-strip {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .form-card,
  .catalog-detail .detail-body,
  .case-body {
    padding: 22px;
  }

  .filter-toggle-mobile {
    display: inline-flex;
    margin-bottom: 14px;
  }

  .filter-panel.collapsed {
    display: none;
  }

  .search-bar {
    flex-direction: column;
  }

  .carousel {
    flex-direction: column;
    overflow-x: visible;
  }

  .carousel > * {
    flex: none;
  }

  .carousel-controls {
    display: none;
  }

  .cert-card img {
    max-width: 240px;
    margin: 0 auto;
  }

  .floating-contact {
    display: flex;
    right: 16px;
    bottom: 78px;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .back-to-top {
    right: 16px;
    bottom: 18px;
  }
}